Dataset

Data from: How habitat-modifying organisms structure the food web of two coastal ecosystems

Zee, van der, E. (Creator), Angelini, C. (Creator), Govers, L. (Creator), Christianen, M. (Creator), Altieri, A. H. (Creator), Reijden, van der, K. (Creator), Silliman, B. R. (Creator), Koppel, van de, J. (Creator), van der Geest, M. (Creator), Gils, van, J. (Creator), Veer, H. W. V. D. (Creator), Piersma, T. (Creator), Ruiter, de, P. C. (Creator), Olff, H. (Creator), Heide, van der, T. (Creator), University of Groningen, 16-Feb-2016

Dataset

  • Institute for Biodiversity and Ecosystem Dynamics, University of Amsterdam, PO Box 94248, 1090 GE Amsterdam, The Netherlands

Description

The diversity and structure of ecosystems has been found to depend both on trophic interactions in food webs and on other species interactions such as habitat modification and mutualism that form non-trophic interaction networks. However, quantification of the dependencies between these two main interaction networks has remained elusive. In this study, we assessed how habitat-modifying organisms affect basic food web properties by conducting in-depth empirical investigations of two ecosystems: North American temperate fringing marshes and West African tropical seagrass meadows. Results reveal that habitat-modifying species, through non-trophic facilitation rather than their trophic role, enhance species richness across multiple trophic levels, increase the number of interactions per species (link density), but decrease the realized fraction of all possible links within the food web (connectance). Compared to the trophic role of the most highly connected species, we found this non-trophic effects to be more important for species richness and of more or similar importance for link density and connectance. Our findings demonstrate that food webs can be fundamentally shaped by interactions outside the trophic network, yet intrinsic to the species participating in it. Better integration of non-trophic interactions in food web analyses may therefore strongly contribute to their explanatory and predictive capacity.
The data package contains 14 files.
Date made available16-Feb-2016
PublisherUniversity of Groningen
Geographical coverageBanc d'Arguin, Mauritania, Rhode Island, USA
Access to the dataset Open
Contact researchdata@rug.nl

    Keywords on Datasets

  • Ecology, Food web, non-trophic interactions, foundations species, ecological networks, ecosystem engineering, facilitation, fringing marshes, seagrass meadows, Spartina alterniflora, Geukensia demissa, Zostra noltii, Callinectes
Related Publications
  1. How habitat-modifying organisms structure the food web of two coastal ecosystems

    van der Zee, E. M., Angelini, C., Govers, L. L., Christianen, M. J. A., Altieri, A. H., van der Reijden, K. J., Silliman, B. R., van de Koppel, J., van der Geest, M., van Gils, J. A., van der Veer, H. W., Piersma, T., de Ruiter, P. C., Olff, H. & van der Heide, T., 2016, In : Proceedings of the Royal Society of London. Series B, Biological Sciences. 283, 1826, p. 1-9

    Research output: Contribution to journalArticleAcademicpeer-review

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ID: 65394333